amd behavior - BSD

This is a discussion on amd behavior - BSD ; Please help me understand amd behavior.
I am automounting USB stick in a way that every user can read and write.
I do it by putting this lines in /etc/amd.map
localhost/stick type:=program;fs:=/amt/stick;\
mount:="/sbin/mount_msdosfs mount_msdosfs -m 0777 /dev/da0s1 /amt/stick";\
unmount:="/sbin/umount umount ...